Home / 9,880.09-13,634.70-5,403.80

Finding the Fourth Proportional to 9,880.09, 13,634.70 and 5,403.80

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Solution

The fourth proportional to 9,880.09, 13,634.70 and 5,403.80 is: 7,457.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,880.09 : 13,634.70 = 5,403.80 : x
  2. Step 2: Convert to fraction form
    9,880.09/13,634.70 = 5,403.80/x
  3. Step 3: Cross multiply
    9,880.09x = 13,634.70 × 5,403.80
  4. Step 4: Simplify right side
    9,880.09x = 73,679,191.86
  5. Step 5: Solve for x
    x = 73,679,191.86/9,880.09
  6. Step 6: Final answer
    x = 7,457.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.